Transcribe Caltech Lectures from YouTube
Get full Caltech lecture transcripts with one URL change
Or just change youtube.com to 2outube.com in your browser
To transcribe a Caltech lecture from YouTube, replace 'youtube.com' with '2outube.com' in the video URL. The full transcript appears instantly beside the video. Transcripts let you search dense technical material, copy equations and terminology, and study Caltech content without rewinding repeatedly.
The Trick
youtube.com/watch?v=VIDEO_ID
2outube.com/watch?v=VIDEO_ID
Just change 'y' to '2'
Works with any YouTube video that has captions
Why Transcribe Caltech Lectures from YouTube
Caltech lectures cover advanced physics, mathematics, and engineering where a single concept can take minutes to explain.
Professors like Feynman and Zwicky used exact terminology that matters for problem sets and papers.
Pasting a lecture transcript into your notes app or Notion means you can annotate, highlight, and reorganize material without switching back to YouTube.
Visiting professors and guest lecturers in Caltech's YouTube catalog sometimes speak at high speed or with regional accents.
How to Transcribe
Find your Caltech lecture on YouTube
Search YouTube for 'Caltech' plus your topic — for example 'Caltech quantum mechanics' or 'Caltech machine learning' — or browse
Change youtube to 2outube
In the URL bar, replace 'youtube.com' with '2outube.com' and press Enter. The full transcript loads instantly alongside the video.
Copy and use the transcript for your studies
Select all transcript text and paste it into your notes, a PDF, or a study tool.
Tips for Transcribing Caltech Lectures from YouTube
Use timestamps to navigate long lectures
Caltech lectures often run 60–90 minutes.
Cross-reference with Caltech's course materials
Many Caltech YouTube lectures correspond to publicly available course pages with syllabi and problem sets.
Search for equations by their spoken names
Professors typically say 'Schrödinger equation' or 'Maxwell's equations' aloud before writing them on the board.
Combine transcripts from a lecture series
If you are watching a full Caltech course playlist, transcribe each video and compile them into one document.
Sample Workflow
Open the Caltech lecture
Open the Caltech lecture on YouTube and swap the URL to 2outube.com to load the full transcript instantly.
Paste the transcript
Paste the transcript into your notes app, add section headings at each major topic change, and highlight every equation name.
Use Ctrl+F during your study
Use Ctrl+F during your study session to jump directly to the derivations and examples most likely to appear on your.
Questions
Does this work with any YouTube video?
Yes, it works with any video that has captions. Most YouTube videos have auto-generated captions.
Is it really free?
Completely free. No account, no subscription, no limits.
Do Caltech's YouTube lectures have captions?
Yes.
Can I transcribe lectures from Caltech's Feynman Lectures series?
Yes. The Feynman Lectures on Physics uploaded to YouTube are captioned and work with the URL swap.
Will the transcript include the math and equations?
The transcript captures everything the professor says aloud, including how equations are read out loud.
How accurate are the captions for technical Caltech content?
Auto-generated captions handle common physics and math terminology well but may misspell highly specialized terms or proper nouns.
Can I use the transcript to create study flashcards?
Absolutely. Copy key definitions, theorem statements, and derivation steps from the transcript directly into Anki or any flashcard tool.
Does 2outube work on mobile for watching Caltech lectures?
Yes. Open the YouTube video URL in your mobile browser, edit the address bar to replace 'youtube.com' with '2outube.
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